Edo Period Reference Card On Fire Arrows And Explosives

A quite unusual item has come up on the Yahoo.jp auctions. As it appears to be a "working" reference, rather than just a text on the subject, I thought some of our members might be interested.

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Small orihon (accordion fold book) depicting various types of fire arrows or small explosive devices (gunpowder-based).

Small and dense explanatory text and images on both sides. The actual document was pasted onto a heavier paper. The size of the document, plus the heavy reinforcement of the backing, suggests this was a "working" reference document, to be carried in the sleeve or inside the kimono.